DTG may refer to:
Arts and entertainment DTG (rapper), British artist on S1mba song "Rover" Dovetail Games, a British video game developer and publisher Digital TV Group, UK members' association for digital television
Science, medicine and technology Differential thermogravimetry, in differential thermal analysis Direct to garment printing, of textiles Ditolylguanidine, an experimental antidepressant drug Dolutegravir, an antiretroviral drug Dynamic theory of gravity, a unified field theory developed by Nikola Tesla
Transport Diesel Traction Group, a New Zealand railway preservation group Dwight Airport, Illinois, US (ICAO:DTG)
Other uses Date-time group, in military communication Deutsche Treuhand-Gesellschaft, a German accounting firm merged with Klynveld Kraayenhof & Co. in 1979